🔥 PowMr MPPT Keeper1220 20A stops charging after 4min 😰🤷

This cheap mppt solar charge controller has an issue. It pauses charging every 4min for about 10sec! i uploaded this video for the seller, official powmr store. i also saw in the comments of other videos about this charge controller that the same issue, was noticed by other people as well. they noticed the same issue. design flaw? quality control issue?b my other charge controllers have never stopped unless the battery is full or the sun is down. i double checked all the equipment shown in the video. all except the powmr mppt keeper1220 charge controller work flawlessly. if you have the same issue or noticed even more issues please let me know in the comments.